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In this question, a number series is given with one term missing. Choose the correct option that will continue the same pattern.
17, 19, 15, 23, 7, 39, ?
The given series is like:
$$19=17+2^1$$
$$15=19-2^2$$
$$23=15+2^3$$
$$7=23-2^4$$
$$39=7+2^5$$
So, the next number will be $$39-2^6=39-64=-25$$
So, option B is the correct answer.